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WO2012002977A1 - Mélange de solvants pour le remplacement de cétones - Google Patents

Mélange de solvants pour le remplacement de cétones Download PDF

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Publication number
WO2012002977A1
WO2012002977A1 PCT/US2010/042879 US2010042879W WO2012002977A1 WO 2012002977 A1 WO2012002977 A1 WO 2012002977A1 US 2010042879 W US2010042879 W US 2010042879W WO 2012002977 A1 WO2012002977 A1 WO 2012002977A1
Authority
WO
WIPO (PCT)
Prior art keywords
solvent composition
composition according
solvent
hydrocarbons
mixture
Prior art date
Application number
PCT/US2010/042879
Other languages
English (en)
Inventor
Rathin Datta
James E. Opre
Kevin L. Monti
Original Assignee
Vertec Biosolvents, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vertec Biosolvents, Inc. filed Critical Vertec Biosolvents, Inc.
Publication of WO2012002977A1 publication Critical patent/WO2012002977A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/45—Anti-settling agents

Definitions

  • Ketones are a specific group of chemicals that are used as solvents in a wide variety of applications. Simple ketones such as acetone, methyl ethyl ketone (MEK) , and methyl iso-butyl ketone
  • MIBK MIBK
  • Isophorone (3, 5, 5-trimethyl-2-cyclohexen-l-one, CAS number (78-59-1)). Isophorone is manufactured by catalyzed self-condensation of acetone by a multi step process - mesityl oxide is the initial product of the aldol self-condensation . Mesityl oxide formation is followed by a Michael reaction of acetone with the mesityl oxide followed by
  • isophorone to rats and guinea pigs, increases in mortality, growth retardation, kidney, lung and liver toxicity and blood cell changes were observed.
  • isophorone is considered a Hazardous Air
  • ketones especially the complex ketones are not readily manufactured from renewable resources and given the desirability of sustainable products and processes, there is a clear need for finding suitable substitutes for such solvents.
  • Ethyl lactate and other lactate esters are environmentally benign, non-toxic solvents derived from renewable carbohydrates via fermentation and separation processes.
  • Ethyl lactate for example, has very good solvent properties and a characteristic odor.
  • this ester has an active hydroxyl group in addition to the carboxylic ester group.
  • Lactate esters can also be blended with other ingredients
  • ester solvents such as ethyl 3-ethoxy propionate available from Eastman Chemical Company of Kingsport, Tennessee (CAS # 763-69-9) have an ether group in addition to the carboxylic ester group.
  • formulations is a mixture of aromatic hydrocarbons (A 150 or AR 150) available from Shell Chemical Company or Exxon Mobil Company. These mixtures are a blend of aromatic compounds (>99% aromatic hydrocarbons) that fall within a range of boiling points.
  • the primary components are C_Q to C__ alkyl benzenes with a total range of C to C_2 alkyl benzenes.
  • AR 150 is available in grades that have very low contents of naphthalene as a low-toxicity solvent .
  • the present invention contemplates a solvent blend that can replace isophorone in a variety of applications.
  • a contemplated blend contains three components: A) a C1-C4 aliphatic ester of lactic acid, B) ethyl 3-ethoxy propionate, and C) a mixture of C ⁇ C_2 hydrocarbons that includes aromatic hydrocarbons and up to about 70 weight percent aliphatic hydrocarbons and provides enhanced properties compared to each component.
  • a contemplated blend contains three components: A) a C1-C4 aliphatic ester of lactic acid, B) ethyl 3-ethoxy propionate, and C) a mixture of C ⁇ C_2 hydrocarbons that includes aromatic hydrocarbons and up to about 70 weight percent aliphatic hydrocarbons and provides enhanced properties compared to each component.
  • a contemplated blend contains three components: A) a C1-C4 aliphatic ester of lactic acid, B) ethyl 3-ethoxy propionate,
  • a contemplated composition is a distillation range of about 150° to about 230° C at one atmosphere, a Tagliabue (Tag) closed cup (TCC) flash point of about 100° F or greater, and can be substantially all (about 95% or more) aromatic compounds, or aromatics plus zero to about 70 weight percent aliphatic compounds.
  • TCC closed cup
  • a mixture of about equal weights of each type of C7-C12 hydrocarbon (aromatic and aliphatic) is preferred.
  • Each of the three ingredients (A, B and C) can itself be present at about 10 to about 80 weight percent of the total.
  • a contemplated composition is a
  • Ethyl lactate is a preferred is a preferred C_-C4 aliphatic ester of lactic acid.
  • Other C1-C4 aliphatic lactate esters include methyl lactate, n-propyl lactate, iso-propyl lactate, n-butyl
  • the C1-C4 aliphatic ester of lactic acid such as ethyl lactate (EL) is present at about 50 to about 70 weight percent, the ethyl
  • 3-ethoxy propionate is present at about 15 to about 35 weight percent, and the C7-C12 hydrocarbon mixture (HC) constitutes about 15 to about 35
  • the solvent blend contains each of the three ingredients in a ratio of about 3:1:1, EL : EEP : HC .
  • the present invention has several benefits and advantages.
  • One benefit of a contemplated blend is that the performance in formulations exceeds that of isophorone.
  • contemplated blend avoids the inherent physiological toxicity that many ketones display.
  • a contemplated blend contains three
  • Each of the three ingredients (A, B and C) can be present at about 10 to about 80 weight percent of the total.
  • a contemplated composition is a homogeneous liquid at room temperature (about 25° C) and at zero degrees C.
  • Ethyl lactate is a preferred is a preferred C_-C4 aliphatic ester of lactic acid.
  • Other lactate esters include methyl lactate, n-propyl lactate, iso- propyl lactate, n-butyl lactate, sec-butyl lactate, iso-butyl lactate and tert-butyl lactate.
  • a contemplated mixture of C ⁇ C_2 hydrocarbons can be comprised of aromatic hydrocarbons (AM) or a mixture of both aromatic and zero to about 70 weight percent aliphatic (AC) hydrocarbons.
  • a contemplated mixture of C ⁇ C_2 hydrocarbons has a distillation range of about 150° to about 230° C at one atmosphere, and a Tagliabue (Tag) closed cup (TCC) flash point of about 100° F or greater, and more preferably about 150° F or greater (>65.6° C) .
  • hydrocarbons are themselves typically mixtures of distillation products obtained from oil refining, and when designated “aromatic” or “aliphatic” can contain up to about 5 weight percent of the other type of solvent.
  • a C7-C12 aromatic hydrocarbon mixture can contain up to about 5 weight percent C7-C12 aliphatic hydrocarbon, and a C7 ⁇ C_2 aliphatic
  • hydrocarbon solvent can contain up to about 5 weight percent of a C7-C12 aromatic hydrocarbon.
  • a commercially available C7 ⁇ C_2 aromatic hydrocarbon solvent contains less than about 1 weight percent C7-C12 aliphatic hydrocarbon, and a
  • C7 ⁇ C_2 aliphatic hydrocarbon solvent contains less than about 1 weight percent C7- C_2 aromatic hydrocarbon.
  • the recitation "zero" as to aliphatics present in a mixture of C7-C12 aromatic hydrocarbons is intended to synonymous with the less than about 1 weight percent that can be present in a commercial C ⁇ C_2 aromatic hydrocarbon solvent.
  • a contemplated mixture of C7-C12 aromatic hydrocarbons is often referred to as naphtha,
  • C ⁇ C_2 aromatic hydrocarbons are about 160° to about
  • AtosolTM 150 One such illustrative commercial product mixture of C ⁇ C_2 aromatic hydrocarbons is sold under the name SolvessoTM 150 by Exxon Mobil Chemical Co. that has a distillation range of about 183° C to about 207° C, a TCC flash point of 66° C, is 99 volume percent aromatics, and has a CAS Registry No. 64742- 94-5.
  • Another illustrative commercial solvent mixture is sold under the name AtosolTM 150 that is available from Total Petrochemicals USA, Inc. That product has CAS Registry No. 64742-94-5, exhibits a distillation range of about 182° C to about 210° C, and a TCC flash point of 150° F or greater (>65.6° C).
  • Illustrative ingredients listed for AtosolTM 150 are as follows: Component Amount (%
  • the substituents on the aromatic groups are one or more aliphatic groups. It is also noted that the naphthalene content of a contemplated C7-C12 aromatic hydrocarbon is typically and preferably less than about 10 % by weight.
  • a contemplated C7-C12 aliphatic hydrocarbon solvent is referred to in the art as a Stoddard solvent, or mineral spirits, and contains about 30 to about 50 weight percent paraffins, about 70 to about 50 weight percent cycloparaffins and less than 1 weight percent aromatics.
  • Stoddard solvent or mineral spirits
  • Each commercial supplier's product is slightly different and an individual supplier can market a number of different C ⁇ C_2 aliphatic hydrocarbon solvents.
  • the C1-C4 aliphatic ester of lactic acid (EL) such as ethyl lactate is present at about 50 to about 70 weight percent
  • the ethyl 3-ethoxy propionate (EEP) is present at about 15 to about 35 weight percent
  • the C7-C12 hydrocarbon (HC) constitutes about 15 to about 35 eight percent.
  • the solvent blend contains each of the three ingredients in a ratio by weight of about 3:1:1, EL:EEP:HC.
  • a first set of comparative assays was for viscosity reduction for several commercially
  • Viscosity Viscosity (cps) Viscosity (cps)
  • the multi-component solvent blend behaves as a consistent solvent when heated and the individual components do not just volatilize
  • the third portion solvent here is a mixture of the aromatic solvent A 150 as described earlier and a C ⁇ C_2 aliphatic hydrocarbon (AC) solvent 142 that is available from Hydrite Chemical Company in Cottage Grove, Wisconsin.
  • This C7-C12 aliphatic hydrocarbon solvent 142 is a typical Stoddard solvent containing a mixture of aliphatic hydrocarbons with a flash point >142° F.
  • the CAS # is 64742-47-8.
  • a solvent blend containing (wt%) ethyl lactate (60), EEP (20), A -150 (10) and HC 142 (10) was prepared to observe phase behavior at room temperature (about 25° C) and at ice bath (about 0° C) . In both conditions, the solvent blend remained as a single phase.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Paints Or Removers (AREA)
  • Detergent Compositions (AREA)

Abstract

La présente invention concerne une composition de solvant en trois parties qui contient A) un ester de lactate en C1 à C4, B) du 3-éthoxypropionate d'éthyle, et C) un mélange d'hydrocarbures en C7-C12, ladite composition constituant un liquide homogène à 0 °C. Un mélange de solvants de l'invention possède des performances qui lui permettent de remplacer des cétones toxiques, mais ne contient de groupe cétonique dans aucun de ses composants.
PCT/US2010/042879 2010-06-29 2010-07-22 Mélange de solvants pour le remplacement de cétones WO2012002977A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/826,239 2010-06-29
US12/826,239 US20110315929A1 (en) 2010-06-29 2010-06-29 Solvent blend for replacement of ketones

Publications (1)

Publication Number Publication Date
WO2012002977A1 true WO2012002977A1 (fr) 2012-01-05

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Family Applications (1)

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PCT/US2010/042879 WO2012002977A1 (fr) 2010-06-29 2010-07-22 Mélange de solvants pour le remplacement de cétones

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WO (1) WO2012002977A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10577548B2 (en) 2017-10-24 2020-03-03 Petrodal Corporation S.A. Oxygenated solvent and surfactant for heavy crude upgrade

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5281444A (en) * 1992-01-02 1994-01-25 Ppg Industries, Inc. Isophorone-free fluorocarbon coating composition
US5612303A (en) * 1993-06-15 1997-03-18 Nitto Chemical Industry Co., Ltd. Solvent composition
US5938856A (en) * 1997-06-13 1999-08-17 International Business Machines Corporation Process of removing flux residue from microelectronic components
US20080029740A1 (en) * 2006-08-01 2008-02-07 Rathin Datta Composition of lactate esters with alcohols with low odor and enhanced performance

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6096699A (en) * 1999-09-03 2000-08-01 Ntec Versol, Llc Environmentally friendly solvent
JP4005092B2 (ja) * 2004-08-20 2007-11-07 東京応化工業株式会社 洗浄除去用溶剤

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5281444A (en) * 1992-01-02 1994-01-25 Ppg Industries, Inc. Isophorone-free fluorocarbon coating composition
US5612303A (en) * 1993-06-15 1997-03-18 Nitto Chemical Industry Co., Ltd. Solvent composition
US5612303B1 (en) * 1993-06-15 2000-07-18 Nitto Chemical Industry Co Ltd Solvent composition
US5938856A (en) * 1997-06-13 1999-08-17 International Business Machines Corporation Process of removing flux residue from microelectronic components
US20080029740A1 (en) * 2006-08-01 2008-02-07 Rathin Datta Composition of lactate esters with alcohols with low odor and enhanced performance

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